If you see this error, it means that the contents of the request you've sent to the Ably platform are invalid. This is most likely caused by invalid data types or missed objects that are otherwise necessarily expected by the platform as part of your request (usually a token request).

Solving this error:

You can view the relevant documentation and API reference to make sure your request body is consistent with what's expected.

If you are still unable to solve it, reach out to us and we'll be happy to help you out.